Hello , I just got an 17/22 for my ASZ. The car is mapped for the stock asz turbo VNT1749VA. After Replacing the turbo and changing the oil/filters I am seeing turbo lag and overboosting. I am posting a log.The car has straight exhaust till muffler.Here is the log done in 3rd gear: https://imgur.com/a/xaCXOIv

The turbo is brand new. I am thinking of a bad N75 valve or maybe boost leaks ?

Pull vacuum on the actuator and make sure it is adjusted correctly. It is possible the actuator is out of adjustment even being new. Kinda doubt the n75 myself but it is possible. Like Nevada stated above...proper tune could be the problem.

It did not however when it started making strange noise it did.It is hard to adjust the actuator ? Is there a tutorial ? I am newbish in this kind of area.Also , it's the 55mm straight exhaust enough for the 17/22 ? Some people told me i need 63mm.

https://m.youtube.com/watch?v=A476plY-sjo&t=99s
That is a good video of how to make sure it’s correct. Being stock tune 55mm is ok but once you tune it you’ll want larger to push the egts out lower. Is your 17/22 electric actuated? If it is then the above video will not help.